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Direct linkMeinck, Sabine; Cortes, Diego; Tieck, Sabine – Large-scale Assessments in Education, 2017
Survey participation rates can have a direct impact on the validity of the data collected since nonresponse always holds the risk of bias. Therefore, the International Association for the Evaluation of Educational Achievement (IEA) has set very high standards for minimum survey participation rates. Nonresponse in IEA studies varies between studies…
Descriptors: Response Rates (Questionnaires), Bias, Educational Assessment, Questionnaires
Stubbe, Tobias C. – Educational Research and Evaluation, 2011
The challenge inherent in cross-national research of providing instruments in different languages measuring the same construct is well known. But even instruments in a single language may be biased towards certain countries or regions due to local linguistic specificities. Consequently, it may be appropriate to use different versions of an…
Descriptors: Test Items, International Studies, Foreign Countries, German
